Deadly day at Virginia Tech

An injured occupant is carried out of Norris Hall at Virginia Tech in Blacksburg, Va., Monday, April 16, 2007. A gunman opened fire in a dorm and classroom at the university Monday, killing 32 people before he turned the gun on himself, police said. It's believed to be the deadliest single shooting incident in history.

Credit: AP/Roanoke Times, Alan Kim

An unidentified man sits handcuffed under the Drill Field review stand while officials check Burruss Hall for safety following a shooting incident on the Virginia Tech campus in Blacksburg, Va., Monday, April 16, 2007. Shootings in a dorm and classroom at Virginia Tech resulted in 33 deaths.

Credit: AP/Roanoke Times, Alan Kim

An injured occupant is carried out of Norris Hall at Virginia Tech in Blacksburg, Va., Monday, April 16, 2007. A gunman opened fire in a dorm and classroom at Virginia Tech on Monday, killing 32 people before he killed himself, police said.

Credit: AP/Roanoke Times, Alan Kim

Police officers take position on campus of Virginia Tech University in Blacksburg, Va., Monday, April 16, 2007, after a gunman went on a rampage, killing at least 32 people before he killed himself, police said.

Credit: CBS/WDBJ

Virginia Tech students run from Norris Hall as an ambulance crew arrives on the scene in Blacksburg, Va., Monday, April 16, 2007. A gunman opened fire in a Virginia Tech dorm and then, two hours later, in a classroom across campus Monday, killing at least 32 people before he turned a gun on himself.

Credit: AP/Roanoke Times, Matt Gentry

A row of ambulances is parked near Norris Hall, the site of a shooting on the campus of Virginia Tech in Blacksburg, Va., Monday, April 16, 2007. A gunman opened fire in a Virginia Tech dorm and then, two hours later, in a classroom across campus, killing at least 32 people in the deadliest shooting rampage in U.S. history.

Credit: AP Photo/Don Petersen

Police and SWAT teams assemble on the Virginia Tech campus in Blacksburg, Va., Monday, April 16, 2007. A gunman opened fire in a Virginia Tech dorm and then, two hours later, in a classroom across campus Monday, killing at least 32 people, then himself.

Credit: AP/Roanoke Times, Eric Brady

Officers gather behind Norris Hall on the campus of Virginia Tech, Monday, April 16, 2007, in Blacksburg, Va., after a gunman opened fire in a Virginia Tech dormitory and then in a classroom building across campus two hours later Monday, killing 32 people in the deadliest shooting rampage in U.S. history. The gunman committed suicide, bringing the death toll to 33.

Credit: AP Photo/Casey Templeton

Rescue workers wheel gurneys to the back of Norris Hall, the site of the second, more deadly shooting on the campus of Virginia Tech in Blacksburg, Va., Monday, April 16, 2007.

Credit: AP Photo/Don Petersen

Security personnel patrol near Norris Hall, the site of a shooting on the campus of Virginia Tech in Blacksburg, Va., Monday, April 16, 2007. A gunman went on a rampage and killed at least 32 people and wounded dozens more before killing himself.

Credit: AP Photo/Don Petersen

Police SWAT teams assemble outside Norris Hall on the Virginia Tech campus in Blacksburg, Va., Monday, April 16, 2007. A gunman opened fire in a Virginia Tech dorm and then, two hours later, in a classroom across campus, killing at least 32 people before he turned a gun on himself.

Credit: AP/Roanoke Times, Eric Brady

Blacksburg police officers run from Norris Hall on the Virginia Tech campus in Blacksburg, Va., Monday, April 16, 2007. A gunman opened fire in a Virginia Tech dorm and then, two hours later, in a classroom across campus Monday, killing at least 32 people.

Credit: AP/Roanoke Times, Matt Gentry

Virginia Tech students watch from the doorway of McBryde Hall on the Virginia Tech campus in Blacksburg, Va., as police infiltrate the area where a shooting took place, Monday, April 16, 2007. A gunman opened fire in a Virginia Tech dorm and then, two hours later, in a classroom across campus Monday, killing at least 32 people.

Credit: AP/Roanoke Times, Matt Gentry

State and local police wait as a building is cleared by police on the Virginia Tech campus in Blacksburg, Va., Monday, April 16, 2007, following a shooting incident. Police said the shootings have left at least 33 people dead, including the gunman, and dozens injured.

Credit: AP Photo/Don Petersen

Police tape hangs in the trees in front of Norris Hall on the campus of Virginia Tech Monday, April 16, 2007, in Blacksburg, Va. A gunman opened fire in a Virginia Tech dorm and then, two hours later, in a classroom across campus Monday, killing at least 30 people. Most of the victims were killed inside Norris Hall.

Credit: AP Photo/Casey Templeton

A police officer stands guard near Virginia Tech's Norris Hall, Monday, April 16, 2007, in Blacksburg, Va. A gunman opened fire in a Virginia Tech dorm and then, two hours later, in a classroom across campus in Norris Hall Monday, killing 32 people. Most of the victims were killed inside Norris Hall.

Credit: AP/News and Observer, Jason Arthurs

Book bags are left outside West Ambler Johnson Hall, the site of the first shootings on the Virginia Tech campus in Blacksburg, Va., Monday, April 16, 2007. A gunman opened fire in a Virginia Tech dorm and then, two hours later, in a classroom across campus Monday, killing at least 32 people before he killed himself.

Credit: AP/Roanoke Times, Eric Brady

Virginia Tech President Charles Steger, left, and Virginia Tech Chief of Campus Police W.R. Flinchum listen at a news conference on the campus of Virginia Tech, where Steger announced the shooting deaths of 33 people in Blacksburg, Va., Monday, April 16, 2007.

Credit: AP Photo/Don Petersen

An officer walks by Norris Hall on the Virginia Tech campus early Tuesday, April 17, 2007, in Blacksburg, Va., after setting up a perimeter line. A gunman massacred 32 people at Virginia Tech in the deadliest shooting rampage in modern U.S. history Monday, cutting down his victims in two attacks before turning the gun on himself.

Credit: AP Photo/Casey Templeton

Officials identified the shooter as Cho Seung-Hui, a 23-year-old, who was a senior and an English major at the school. Cho maintained a residence in Centreville, Va., but also lived in a campus dormitory, police said.